Can I use a screenshot of the guide?

No. A screenshot can resize unpredictably. Use the original PDF, print at actual size, and verify its physical scale.

What if the ring falls between two circles?

Record the uncertainty rather than rounding silently. Confirm the fit with a matched physical gauge or jeweler.

Can I use a ring from another finger?

No. The result should come from the exact intended finger and hand, or it is only a weak guess.

Accuracy begins before the measurement

Set up a printable ring sizer so its markings still mean what they should.

Use the original file, print at the stated scale, and confirm its reference mark with a ruler. Only then should the printed reading guide a design conversation.

Open the printable ring sizer Carry my result into Atelier

A private engagement-ring plan with sizing notes and a ring box — Illustrative scene. Keep estimates visibly separate from confirmed measurements, and leave room to verify the fit before final making decisions.

Fit, wear & care—considered together

A clearer decision, with the important context kept beside it

Set the page to actual size, verify the printed calibration line with a ruler, and stop immediately if it does not match.

Use this page when

Your printer or browser has scaling controls you can inspect.
You want to troubleshoot a printable sizer before trusting it.

Pause this route when

You cannot measure the physical calibration line.
The print is stretched, cropped, reduced, or copied through an image app.

Where this choice often matters

Preparing a printable ring comparison at home.
Helping a loved one use a print sheet without sharing the size publicly.

Compare the details

Print settings that protect scale

Browser labels differ, so the ruler result—not the menu wording—is the final pass/fail check.

Control	Choose	Avoid	Verify
Page scaling	100% / actual size	Fit / shrink / expand	50 mm line
Paper	Flat unwarped sheet	Curled or resized copy	Ruler alignment
Orientation	As instructed	Auto-rotation if it rescales	Full page visible
Comparison	Inner ring edge	Outside ring edge	Repeat diameter

Ring-size reference chart

Compare named sizes with inside measurements

Keep your original system and maker’s chart. This table is a comparison aid, not a universal fit promise.

Diameter inner edge to inner edge through the centerCircumference the complete inside path around the ringFit review intended finger, hand, band width, stack, and knuckle

US & Canada	UK, Europe & Australia	Asia	Inside diameter	Inside circumference
3	F	4	14.1 mm	44.3 mm
3.5	G	—	14.5 mm	45.6 mm
4	H	7	14.9 mm	46.8 mm
4.5	I	8	15.3 mm	48.1 mm
5	J	9	15.7 mm	49.3 mm
5.5	K	10	16.1 mm	50.6 mm
6	L	11	16.5 mm	51.8 mm
6.5	M	13	16.9 mm	53.1 mm
7	N	14	17.3 mm	54.3 mm
7.5	O	15	17.7 mm	55.6 mm
8	P	16	18.1 mm	56.9 mm
8.5	Q	17	18.5 mm	58.1 mm
9	R	18	19.0 mm	59.7 mm
9.5	S	19	19.4 mm	60.9 mm
10	T	20	19.8 mm	62.2 mm
10.5	U	22	20.2 mm	63.5 mm
11	V	23	20.6 mm	64.7 mm
11.5	W	24	21.0 mm	66.0 mm
12	X	25	21.4 mm	67.2 mm
12.5	Y	26	21.8 mm	68.5 mm
13	Z.5	27	22.2 mm	69.7 mm
13.5	Z1	—	22.6 mm	71.0 mm

Reviewed 2026-08-25. Source reference: GIA ring-size guide. This table follows GIA’s US and Canada, UK/Europe/Australia, and Asia columns; blank cells are not listed by GIA. Leyloon uses the nearest physical row without interpolation and keeps your original measurement beside it.

Keep your direction organised

The complete choice groups for this decision

These groups support this page’s promise: Set the page to actual size, verify the printed calibration line with a ruler, and stop immediately if it does not match. Use them to compare what belongs together; make and keep your editable choices in the working path that follows.

Where are you printing from?

Choose one direction.

Desktop browserInspect scale and paper settings.
Phone or tabletConfirm the print service does not resize.
Saved PDFKeep page dimensions and actual size.
Copied sheetRecalibrate the copy itself.

What went wrong?

Choose one direction.

Line printed too shortDisable fit-to-page and increase to actual size.
Line printed too longRemove enlargement or custom scaling.
Page is croppedChoose correct paper/orientation.
Line matchesProceed to inner-edge comparison.

Questions worth asking

Open the concern that sounds like yours

Each answer stays within this page’s promise—Set the page to actual size, verify the printed calibration line with a ruler, and stop immediately if it does not match.—without making the next step feel heavier than it needs to be.

The page says 100%, but the line is wrong. Which do I trust?

Trust the physical ruler result and print again with different scaling.

Can I photocopy a correct sheet?

Only if the copy itself passes the same calibration check.

Why does my ring sit between circles?

Record its physical inside diameter and use the calculator rather than guessing the nearest circle.

Ready when you are

Carry this direction into your design

Leyloon can keep these choices together while you continue. Every detail stays editable. For this page, that means: Set the page to actual size, verify the printed calibration line with a ruler, and stop immediately if it does not match.

Calibrated physical resultNeeded before the direction is complete
Source and intended widthA useful next question
Print platform, calibration value, and comparison methodKeep it open if you are still deciding

Illustrative ring-wear context across three anatomically complete hands — Illustrative ring-wear context—not a size, width, or knuckle-fit comparison. Use the governed measurements and the exact planned ring construction together. Here it supports the decisions behind “Set up a printable ring sizer so its markings still mean what they should.”

A visual map of this brief

See what stays known—and what remains open

This route begins with “The calibration mark matters more than how polished the page looks.” The next choices stay grouped, editable, and connected to that same Atelier brief.

Ring you are sizingChoose the ring context so the measurement stays attached to the right width, profile, and finger.
What measurement do you have?Keep the method with the number. The working tool above can help compare it without replacing the maker's final fit check.
Band width or stackChoose the planned contact width. Exact millimeters stay editable.
What could change the fit?Choose the closest context. You can add the exact measurements privately in Atelier.

Start with what matters on this page

Keep the measurement with the ring it belongs to

Choose how you measured and the ring context. The number stays private, and Atelier carries the method, width, and fit notes together.

01 Ring you are sizing

Choose the ring context so the measurement stays attached to the right width, profile, and finger.

02 What measurement do you have?

Keep the method with the number. The working tool above can help compare it without replacing the maker's final fit check.

03 Band width or stack

Choose the planned contact width. Exact millimeters stay editable.

04 What could change the fit?

Choose the closest context. You can add the exact measurements privately in Atelier.

What else should Atelier help with?

Add only the parts you want to explore. The page topic is already included.

Fit and formIncluded from this page

Nothing selected yet. You can still continue and answer in Atelier.

Published customer proof

Real experiences, kept separate from promises

Only approved purchase-linked reviews appear here. An illustrative scene is never presented as a customer, and one person’s experience is never treated as a promise for another piece.

See what Leyloon customers have shared

Read recent shop reviews on Etsy, then come back when you are ready to shape your own fit and jewelry direction.

See Leyloon reviews on Etsy

These reviews reflect individual Leyloon service experiences. Your fit and jewelry direction and quote request are reviewed on their own.